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|   | <span id="046_2nd_par">When</span> revising existing authority records, record dates in field 046 even if the heading itself does not have dates in 100 subfield $d, when the information is readily available.    |   | <span id="046_2nd_par">When</span> revising existing authority records, record dates in field 046 even if the heading itself does not have dates in 100 subfield $d, when the information is readily available.    | 
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| − | When recording dates in field 046, use the Extended Date Time Format (EDTF) schema in all cases except for centuries; supply dates using the pattern yyyy, yyyy-mm, or yyyy-mm-dd. See date table in [http://original.rdatoolkit.org/lacbanqpschp9_lacbanqps9-304.html LAC-BanQ PS 9.3.1.3].    | + | When recording dates in field 046, use the Extended Date Time Format (EDTF) schema in all cases except for centuries; supply dates using the pattern yyyy, yyyy-mm, or yyyy-mm-dd. See date table in [http://original.rdatoolkit.org/lacbanqpschp9_lacbanqps9-304.html LAC-BanQ PS 9.3.1.3]. <span style="color:red> For the full EDTF specification, see [https://www.loc.gov/standards/datetime/ https://www.loc.gov/standards/datetime/].</span>  | 
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|   | ''Examples:''  |   | ''Examples:''  | 
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|   | 670 ## $a Wikipédia, 21 juillet 2010 $b (Eleanor Roosevelt; Anna Eleanor Roosevelt; née le 11 octobre 1884 à Manhattan, à New York; morte le 7 novembre 1962)  |   | 670 ## $a Wikipédia, 21 juillet 2010 $b (Eleanor Roosevelt; Anna Eleanor Roosevelt; née le 11 octobre 1884 à Manhattan, à New York; morte le 7 novembre 1962)  | 
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| − | <div style="margin-top:25px;">
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| − | 046 ## $s -0199~ $2 edtf
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| − | 
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| − | 100 0# $a Hellanicus $c (Grammairien), $d environ 200 av. J.-C.
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| − | 
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| − | 670 ## $a Brill's new Pauly, consulté le 2 août 2011 $b (Hellanicus; grammairien d'Alexandrie; environ 200 av. J.-C.)
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| − | </div>
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|   | <div style="margin-top:25px;">  |   | <div style="margin-top:25px;">  | 
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|   | 670 ## $a Cox, Karen Castellucci. Isabel Allende, 2003 : $b p. 4-5 (en 1981 Allende a commencé à écrire une version romancée des histoires qu'elle avait entendues dans son enfance, qui a été publiée en Espagne en 1982)  |   | 670 ## $a Cox, Karen Castellucci. Isabel Allende, 2003 : $b p. 4-5 (en 1981 Allende a commencé à écrire une version romancée des histoires qu'elle avait entendues dans son enfance, qui a été publiée en Espagne en 1982)  | 
|   | </div>  |   | </div>  | 
|   | + | <div style="margin-top:25px;"><span style="color:red>  | 
|   | + | 046 ## $s 194X $2 edtf  | 
|   | + |  | 
|   | + | 100 1# $a Hicks, Johnny $c (Saxophonist)  | 
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|   | + | 670 ## $a Bryant, W. Blues around the clock [SR] 1945: $b label (Johnny Hicks, tenor sax)  | 
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|   | + | 670 ## $a Discogs website, May 27, 2021 $b (Johnny Hicks; tenor sax player who performed with Tab Smith in the 1940s)  | 
|   | + | </div></span>  | 
|   | </div>  |   | </div>  | 
|   | + |  | 
|   | + | <span style="color:red>When recording B.C. dates in the 046 field, precede the digits by a hyphen (minus sign). Because there is no year “zero” in the common era calendar, subtract one year from the actual B.C. date, e.g., the year 50 B.C. is recorded -0049.</span>  | 
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|   | + | <span style="color:red>''Examples:''  | 
|   | + | <div style="font-family:courier new; padding-right:25px; padding-left:100px; padding-top:10px; padding-bottom:10px; text-indent:-85px; line-height:1.4; border:1px solid #eaecf0; background-color:#f8f9fa;"><span style="color:red>  | 
|   | + | 046 ## $s -0199~ $2 edtf  | 
|   | + |  | 
|   | + | 100 0# $a Hellanicus $c (Grammairien), $d environ 200 av. J.-C.  | 
|   | + |  | 
|   | + | 670 ## $a Brill's new Pauly, consulté le 2 août 2011 $b (Hellanicus; grammairien d'Alexandrie; environ 200 av. J.-C.)  | 
|   | + | </div></span>  | 
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|   | When recording a century in the 046 field, use the first two digits of the hundred year span (e.g., use “16” to represent the 17th century, 1600–1699).    |   | When recording a century in the 046 field, use the first two digits of the hundred year span (e.g., use “16” to represent the 17th century, 1600–1699).    |